Ro Led / Mbed 2 deprecated BLE_DHT11_Service_TemperatureHumidity

Project aiming to do a Bluetooth Low Energy IoT devices, which measure temperature and humidity. Bluetooth achieved with the IDB05A1 shield. Temperature/humidity achieved with a DHT11 sensor. Project working, tested on an STM32 L476 board.

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 mbed

main.cpp@1:023e1eae2048, 2017-04-18 (annotated)

Committer:
ledonger
Date:
Tue Apr 18 14:08:50 2017 +0000
Revision:
1:023e1eae2048
Parent:
0:d2c18f736df1
Child:
2:c0bd998cb02f
Be careful to use mbed revision 125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ledonger 0:d2c18f736df1 1 /*
ledonger 0:d2c18f736df1 2 Tested with a STM32 L476 and the IDB05A1 BLE shield
ledonger 0:d2c18f736df1 3 */
ledonger 0:d2c18f736df1 4
ledonger 0:d2c18f736df1 5 #include "mbed.h"
ledonger 0:d2c18f736df1 6 #include "ble/BLE.h"
ledonger 0:d2c18f736df1 7 #include "DHT11_BLEService.h"
ledonger 0:d2c18f736df1 8 #include "DHT11.h"
ledonger 0:d2c18f736df1 9
ledonger 0:d2c18f736df1 10 DigitalOut LED(LED1, 0);
ledonger 0:d2c18f736df1 11
ledonger 1:023e1eae2048 12 const static char DEVICE_NAME[] = "LED";
ledonger 0:d2c18f736df1 13 static const uint16_t uuid16_list[] = {DHT11Service::DHT11_UUID};
ledonger 0:d2c18f736df1 14
ledonger 0:d2c18f736df1 15 DHT11Service *dht11ServicePtr;//Bluetooth service that manage information and ble updates
ledonger 1:023e1eae2048 16 uint8_t tempValue;
ledonger 1:023e1eae2048 17 uint8_t humiValue;
ledonger 0:d2c18f736df1 18
ledonger 0:d2c18f736df1 19 DHT11 dht11(PC_10);//Data pin of the DTH11 sensor
ledonger 0:d2c18f736df1 20 Ticker updateTick;
ledonger 0:d2c18f736df1 21
ledonger 0:d2c18f736df1 22 void updateData(){
ledonger 0:d2c18f736df1 23 //LED = 1;
ledonger 0:d2c18f736df1 24 if(!dht11.readData()){
ledonger 0:d2c18f736df1 25 for(int i = 0; i < 10; i++){LED = !LED; wait_ms(50);}
ledonger 0:d2c18f736df1 26 }
ledonger 0:d2c18f736df1 27 dht11ServicePtr->updateTemperatureValue(dht11.getTemperature());
ledonger 0:d2c18f736df1 28 dht11ServicePtr->updateHumidityValue(dht11.getHumidity());
ledonger 0:d2c18f736df1 29 //LED = 0;
ledonger 0:d2c18f736df1 30 }
ledonger 0:d2c18f736df1 31
ledonger 0:d2c18f736df1 32 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
ledonger 0:d2c18f736df1 33 {
ledonger 0:d2c18f736df1 34 (void)params;
ledonger 0:d2c18f736df1 35 BLE::Instance().gap().startAdvertising(); // restart advertising
ledonger 0:d2c18f736df1 36 }
ledonger 0:d2c18f736df1 37
ledonger 0:d2c18f736df1 38 /**
ledonger 0:d2c18f736df1 39 * This callback allows the LEDService to receive updates to the ledState Characteristic.
ledonger 0:d2c18f736df1 40 *
ledonger 0:d2c18f736df1 41 * @param[in] params
ledonger 0:d2c18f736df1 42 * Information about the characterisitc being updated.
ledonger 0:d2c18f736df1 43 */
ledonger 0:d2c18f736df1 44 /*void onDataWrittenCallback(const GattWriteCallbackParams *params) {
ledonger 0:d2c18f736df1 45 if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
ledonger 0:d2c18f736df1 46 actuatedLED = *(params->data);
ledonger 0:d2c18f736df1 47 }
ledonger 0:d2c18f736df1 48 }*/
ledonger 0:d2c18f736df1 49
ledonger 0:d2c18f736df1 50 /**
ledonger 0:d2c18f736df1 51 * This function is called when the ble initialization process has failled
ledonger 0:d2c18f736df1 52 */
ledonger 0:d2c18f736df1 53 void onBleInitError(BLE &ble, ble_error_t error)
ledonger 0:d2c18f736df1 54 {
ledonger 0:d2c18f736df1 55 /* Initialization error handling should go here */
ledonger 0:d2c18f736df1 56 }
ledonger 0:d2c18f736df1 57
ledonger 0:d2c18f736df1 58 /**
ledonger 0:d2c18f736df1 59 * Callback triggered when the ble initialization process has finished
ledonger 0:d2c18f736df1 60 */
ledonger 0:d2c18f736df1 61 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
ledonger 0:d2c18f736df1 62 {
ledonger 0:d2c18f736df1 63 BLE& ble = params->ble;
ledonger 0:d2c18f736df1 64 ble_error_t error = params->error;
ledonger 0:d2c18f736df1 65
ledonger 0:d2c18f736df1 66 if (error != BLE_ERROR_NONE) {
ledonger 0:d2c18f736df1 67 /* In case of error, forward the error handling to onBleInitError */
ledonger 0:d2c18f736df1 68 onBleInitError(ble, error);
ledonger 0:d2c18f736df1 69 return;
ledonger 0:d2c18f736df1 70 }
ledonger 0:d2c18f736df1 71
ledonger 0:d2c18f736df1 72 /* Ensure that it is the default instance of BLE */
ledonger 0:d2c18f736df1 73 if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
ledonger 0:d2c18f736df1 74 return;
ledonger 0:d2c18f736df1 75 }
ledonger 0:d2c18f736df1 76
ledonger 0:d2c18f736df1 77 ble.gap().onDisconnection(disconnectionCallback);
ledonger 0:d2c18f736df1 78 //ble.gattServer().onDataWritten(onDataWrittenCallback);
ledonger 0:d2c18f736df1 79
ledonger 0:d2c18f736df1 80 tempValue = 20;
ledonger 0:d2c18f736df1 81 humiValue = 10;
ledonger 0:d2c18f736df1 82 dht11ServicePtr = new DHT11Service(ble, tempValue,humiValue);
ledonger 0:d2c18f736df1 83
ledonger 0:d2c18f736df1 84 updateTick.attach(&updateData,5.0);
ledonger 0:d2c18f736df1 85
ledonger 0:d2c18f736df1 86 /* setup advertising */
ledonger 0:d2c18f736df1 87 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
ledonger 0:d2c18f736df1 88 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
ledonger 0:d2c18f736df1 89 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
ledonger 0:d2c18f736df1 90 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
ledonger 0:d2c18f736df1 91 ble.gap().setAdvertisingInterval(1000); /* 1000ms. */
ledonger 0:d2c18f736df1 92 ble.gap().startAdvertising();
ledonger 0:d2c18f736df1 93
ledonger 0:d2c18f736df1 94 while (true) {
ledonger 0:d2c18f736df1 95 ble.waitForEvent();
ledonger 0:d2c18f736df1 96 }
ledonger 0:d2c18f736df1 97 }
ledonger 0:d2c18f736df1 98
ledonger 1:023e1eae2048 99
ledonger 0:d2c18f736df1 100 int main(void)
ledonger 0:d2c18f736df1 101 {
ledonger 0:d2c18f736df1 102 BLE &ble = BLE::Instance();
ledonger 0:d2c18f736df1 103
ledonger 0:d2c18f736df1 104 ble.init(bleInitComplete);
ledonger 0:d2c18f736df1 105 }
ledonger 0:d2c18f736df1 106